HIDDEN VALLEY WATER DISTRICT
PWS ID: CO0130045 · EVERGREEN, Colorado 80439
Population Served
155
Total Violations
199
Health-Based Violations
124
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 63
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 117
- Monitoring Violations
- 68
- Treatment Tech Violations
- 7
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 72 | 2016 |
| Gross Alpha, Excl. Radon and U | MCL | 22 | 2011 |
| Surface Water Treatment Rule | MR | 14 | 2024 |
| Revised Total Coliform Rule | MON | 14 | 2024 |
| Coliform (TCR) | MR | 13 | 2007 |
| Combined Uranium | MCL | 11 | 2011 |
| Chlorine | MR | 11 | 2024 |
| Coliform (TCR) | MCL | 8 | 1995 |
| Nitrate | MCL | 4 | 2018 |
| Nitrate | MR | 4 | 2020 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 4 | 2023 |
| Arsenic | MR | 3 | 2006 |
| Consumer Confidence Rule | Other | 3 | 2013 |
| Combined Radium (-226 and -228) | MR | 3 | 2015 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2024 |
| Combined Uranium | MR | 3 | 2015 |
| LEAD AND COPPER RULE REVISIONS | TT | 3 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 2015 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.